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Posted to yarn-issues@hadoop.apache.org by "Vrushali C (JIRA)" <ji...@apache.org> on 2017/05/12 19:21:04 UTC

[jira] [Updated] (YARN-6323) Rolling upgrade/config change is broken on timeline v2.

     [ https://issues.apache.org/jira/browse/YARN-6323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vrushali C updated YARN-6323:
-----------------------------
    Attachment: YARN-6323.001.patch

Uploading patch 001.

This patch adds in a default flow context when the NM is trying to recover the app information upon restart. 

Using the app id itself as the flow name,
a default flow version,
cluster timestamp as flow run id.


> Rolling upgrade/config change is broken on timeline v2. 
> --------------------------------------------------------
>
>                 Key: YARN-6323
>                 URL: https://issues.apache.org/jira/browse/YARN-6323
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Li Lu
>            Assignee: Vrushali C
>              Labels: yarn-5355-merge-blocker
>         Attachments: YARN-6323.001.patch
>
>
> Found this issue when deploying on real clusters. If there are apps running when we enable timeline v2 (with work preserving restart enabled), node managers will fail to start due to missing app context data. We should probably assign some default names to these "left over" apps. I believe it's suboptimal to let users clean up the whole cluster before enabling timeline v2. 



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